Name:	John boy -	Reply
Subject:	Charging problem on 60hp mercury
Date:	8/3/2015 1:08:25 AM

I have a 2005 60 Hp four stroke Mercury that only shows 12.2 volts then it will show 13.4 or so and some times it goes from 12 to 13 volts. I don't know anything about the charging system on these motors but does it have a voltage regulator that could be going bad? If so what does it look like and where is it on the motor? Thanks for any help.

Name:	GoneFishin -	Reply
Subject:	Charging problem on 60hp mercury
Date:	8/3/2015 8:19:42 PM

Here is an interesting discussion on another forum.

Merc 4 stroke

Name:	John boy -	Reply
Subject:	Charging problem on 60hp mercury
Date:	8/3/2015 9:22:04 PM

Thanks will check into it next weekend.

Name:	CAT BOAT -	Reply
Subject:	Charging problem on 60hp mercury
Date:	8/4/2015 7:55:03 AM

Just an FYI.... Not that you need it, but I have a 2015 Merc. 60hp 4 stroke with 1hr on it for sale.  Warranty until 5-1-18.  5500.00.  And check your voltage output with a volt meter, with the engine NOT running, as compared to RUNNING.  Forget the gauge on the dash for now until you have that reading.

Steve

Name:	John boy -	Reply
Subject:	Charging problem on 60hp mercury
Date:	8/5/2015 9:46:47 PM

Steve I will check that this weekend. What should the readings be each way? But not interested in a 60hp but what do you have in a 90 or 115. This motor probably only has about 3 to 400 hours on it. Motor runs great but would like to move up after getting a hand on this charging issue. You fixed the bottom end seal and I got the 4 blade prop. Thanks John

Name:	John boy -	Reply
Subject:	Cat checked the charging problem on 60hp mercury
Date:	8/13/2015 12:34:13 AM

I took the small rubber plug on the line from the voltage regulator and got between 12.8 and 13.4 form idle to half throtttle. I think the gauge is going bad or sticking. How much should voltage drop with red/green and overhead white light on ? I might have a voltage drain from the squirrels maybe chewing on wires. They have chewed the stereo wires and the vacumn line for speedo that I have had to fix. The light are not LED but just regular bulbs. Can I replace with LED bulbs without changing light fixtures. Thanks John

Name:	CAT BOAT -	Reply
Subject:	Cat checked the charging problem on 60hp mercury
Date:	8/13/2015 12:53:52 PM

Your charging system is just fine.  Those are good readings and output.  I would say the gauge on the dash is tellin' you a fib.  As to the lights, and draw, With the engine running, your output should still be higher than 12 volts.  With the engine OFF, you will be 12 or less.  -/+

Name:	John boy -	Reply
Subject:	Cat checked the charging problem on 60hp mercury
Date:	8/19/2015 9:37:00 PM

Thanks Steve. Going to replace voltmeter with a digital one, it will not match bu will give better readings. Can I change to LED lights without changing the light fixture?????  What do you have in line of a larger motor like a used 90 or 115 4 stroke. Thanks John